4-Hydroxy-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine 1,1-dioxide CAS 138890-97-8
| CAS No. | 138890-97-8 |
| Molecular Formula | C6H7NO3S2 |
| Molecular Weight | 205.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Hydroxy-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine 1,1-dioxide (CAS 138890-97-8), a certified reference material (molecular formula C6H7NO3S2, MW 205.25 g/mol) for analytical method development and quality control.
Structurally, 4-Hydroxy-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine 1,1-dioxide (C6H7NO3S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 205.25 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-Hydroxy-3,4-dihydro-2H-thieno[3,2-e][1,2]thiazine 1,1-dioxide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H7NO3S2 |
| Molecular Weight | 205.25 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Hydroxy Standards
- 4-Hydroxy-3,4-dihydro-2H-thieno[2,3-e][1,2]thiazine 1,1-dioxide (CAS 1030422-61-7)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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